Patents by Inventor Hiroyuki Nishino
Hiroyuki Nishino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11914407Abstract: The flow rate control device 10 includes a control valve 11, a restriction part 12 provided downstream of the control valve 11, an upstream pressure sensor 13 for measuring a pressure P1 between the control valve 11 and the restriction part 12, a differential pressure sensor 20 for measuring a differential pressure ?P between the upstream and the downstream of the restriction part 12, and an arithmetic control circuit 16 connected to the control valve 11, the upstream pressure sensor 13, and the differential pressure sensor 20.Type: GrantFiled: April 16, 2020Date of Patent: February 27, 2024Assignee: FUJIKIN INCORPORATEDInventors: Kaoru Hirata, Keisuke Ideguchi, Shinya Ogawa, Katsuyuki Sugita, Masaaki Nagase, Kouji Nishino, Nobukazu Ikeda, Hiroyuki Ito
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Patent number: 10530477Abstract: A visible light communication apparatus includes: an on/off switch connected in series to a load circuit including a light emitting diode; an impedance circuit connected in series to the on/off switch; a feedback circuit that feeds back an error between a voltage drop across the impedance circuit and a reference voltage potential to a voltage source as a feedback signal; a drive circuit that turns on and off the on/off switch in accordance with a communication signal which is a binary signal; an isolation circuit that transmits power while being electrically isolated; and an auxiliary power supply circuit that is connected between two output terminals of the voltage source, generates an auxiliary supply voltage, and supplies power based on the auxiliary supply voltage generated to the on/off switch and the drive circuit via the isolation circuit.Type: GrantFiled: February 21, 2019Date of Patent: January 7, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroyuki Nishino, Hiromichi Goto, Kazuo Itoh, Shojiro Kido, Teruhito Takeda
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Publication number: 20190305846Abstract: Disclosed herein is a receiver including a receiver circuit, a control circuit, and a wireless communications circuit. The control circuit retrieves identification information and content information from a plurality of transmitters based on an output of the receiver circuit. The control circuit retrieves, when having failed to retrieve content information from the plurality of transmitters, identification information from at least two of the plurality of transmitters, identifies one of the at least two of the plurality of transmitters as a target transmitter in association with the retrieved identification information, and also identifies another one the at least two of the plurality of transmitters as a non-target transmitter in association with the retrieved identification information. The wireless communications circuit transmits the control signal to allow the target transmitter to transmit the second optical signal and cause the non-target transmitter not to transmit the second optical signal.Type: ApplicationFiled: March 18, 2019Publication date: October 3, 2019Inventors: Shojiro KIDO, Teruhito TAKEDA, Hiromichi GOTO, Kazuo ITOH, Hiroyuki NISHINO
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Publication number: 20190268069Abstract: A visible light communication apparatus includes: an on/off switch connected in series to a load circuit including a light emitting diode; an impedance circuit connected in series to the on/off switch; a feedback circuit that feeds back an error between a voltage drop across the impedance circuit and a reference voltage potential to a voltage source as a feedback signal; a drive circuit that turns on and off the on/off switch in accordance with a communication signal which is a binary signal; an isolation circuit that transmits power while being electrically isolated; and an auxiliary power supply circuit that is connected between two output terminals of the voltage source, generates an auxiliary supply voltage, and supplies power based on the auxiliary supply voltage generated to the on/off switch and the drive circuit via the isolation circuit.Type: ApplicationFiled: February 21, 2019Publication date: August 29, 2019Inventors: Hiroyuki NISHINO, Hiromichi GOTO, Kazuo ITOH, Shojiro KIDO, Teruhito TAKEDA
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Publication number: 20180295691Abstract: An illumination light communication apparatus to be connected to a light source that emits illumination light due to a current from a constant current generation device, and that modulates the illumination light includes: a switch connected in series to the light source; a signal generator circuit that generates a binary communication signal which controls ON and OFF states of the switch to modulate the illumination light; a current suppression circuit that is connected in series to the light source and the switch, and that suppresses the current flowing in the light source so that a current setting value corresponding to a reference value is not exceeded; and a controller that can change an ON duty ratio of the switch through the communication signal. The controller changes the ON duty ratio of the switch during a transition period in which a current flowing in the current suppression circuit changes.Type: ApplicationFiled: April 2, 2018Publication date: October 11, 2018Inventors: Teruhito TAKEDA, Shigeaki YAMASAKI, Shojiro KIDO, Kazuo ITOH, Hiromichi GOTO, Hiroyuki NISHINO
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Patent number: 9814115Abstract: An illumination light communication apparatus includes: a light source which emits illumination light; a power supply circuit for supplying constant current to the light source; a switch which is connected in series to the light source, and intermittently interrupts current which flows through the light source; a signal generating circuit which generates a binary communication signal which controls on and off of the switch to modulate the illumination light; and a current limiting circuit which is connected in series to the light source and the switch, and limits the current which flows through the light source to prevent the current from exceeding a current set value which is variable.Type: GrantFiled: December 22, 2016Date of Patent: November 7, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shojiro Kido, Teruhito Takeda, Hiromichi Goto, Kazuo Itoh, Hiroyuki Nishino, Shigeaki Yamasaki
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Publication number: 20170188420Abstract: An illumination light communication apparatus includes: a light source which emits illumination light; a power supply circuit for supplying constant current to the light source; a switch which is connected in series to the light source, and intermittently interrupts current which flows through the light source; a signal generating circuit which generates a binary communication signal which controls on and off of the switch to modulate the illumination light; and a current limiting circuit which is connected in series to the light source and the switch, and limits the current which flows through the light source to prevent the current from exceeding a current set value which is variable.Type: ApplicationFiled: December 22, 2016Publication date: June 29, 2017Inventors: Shojiro KIDO, Teruhito TAKEDA, Hiromichi GOTO, Kazuo ITOH, Hiroyuki NISHINO, Shigeaki YAMASAKI
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Patent number: 9451679Abstract: An illuminating light communication device comprises a constant current source, a smoothing capacitor connected to an output of the constant current source, a load circuit comprising a light emitting diode and connected to the output of the constant current source, a load change element added to the load circuit and thereby partially changing load characteristic of the load circuit, and a switch element configured to determine whether or not the load change element is added to the load circuit in accordance with a binary optical communication signal.Type: GrantFiled: August 22, 2011Date of Patent: September 20, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroyuki Nishino, Eiji Shiohama, Shigeaki Yamasaki
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Patent number: 9236764Abstract: A DC power supply system includes a DC power supply and a secondary battery for backing up the DC power supply. When a voltage of the DC power supply is lower than a voltage of the secondary battery, the DC power system adds an extra voltage to the voltage of the DC power supply to provide an input voltage to the secondary battery higher than the voltage of the secondary battery by using an electric power of the secondary battery, and the secondary battery is charged.Type: GrantFiled: September 8, 2011Date of Patent: January 12, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kazunori Kidera, Takuya Kagawa, Hideki Tamura, Hiroyuki Nishino, Mariko Nishi
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Patent number: 9184662Abstract: An electric power supply apparatus, which enables a driving frequency of a switching circuit connected to a primary side of a transformer constant and output of a secondary side variable, comprises a transformer (5), a series circuit of two first switching elements (Q1, Q2) connected between terminals of a direct current power supply (2), an LC resonant circuit connected between both ends of one of the first switch element (Q2) and a primary winding (Np) of the transformer (5), bidirectional switch elements (Q3, Q4) connected to secondary windings (Ns1, Ns2) of the transformer (5) and having a rectification function and a phase control function, and a control circuit for inputting gate driving signals having a phase difference into the first switch elements (Q1, Q2) and the second switch elements (Q3, Q4).Type: GrantFiled: September 21, 2011Date of Patent: November 10, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroyuki Nishino, Kazunori Kidera, Mariko Nishi
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Patent number: 9166482Abstract: A power supply device includes a transformer; a series circuit of two bidirectional switching elements connected between terminals of the commercial power supply and having a rectification function and a switching function; an LC resonant circuit connected between a primary coil of the transformer and both ends of one of the bidirectional switching elements; a rectifying element connected to a secondary coil of the transformer; and a control circuit for inputting a gate driving signal to the bidirectional switching elements. The power supply device performs synchronous rectification from the bidirectional switching elements.Type: GrantFiled: March 14, 2013Date of Patent: October 20, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroyuki Nishino, Hiroaki Koshin
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Patent number: 8810155Abstract: An illumination light communication device includes a power supply unit controlling a load current in a light source unit to be maintained constant based on a dimming signal; an impedance unit series connected to the light source unit; a switch element parallel connected to the impedance unit to connect/disconnect the impedance unit with the light source unit; and a control unit controlling on/off of the switch element to modulate a light intensity of the light source unit such that a binary communication signal is superimposed on illumination light therefrom. The control unit controls the impedance of the impedance unit such that a difference between magnitudes of the load currents respectively when the pulse of the communication signal is superimposed and is not superimposed is maintained constant regardless of a dimming rate of the dimming signal in a range of a dimming rate equal to or greater than a predetermined level.Type: GrantFiled: July 12, 2012Date of Patent: August 19, 2014Assignee: Panasonic CorporationInventors: Masao Kamada, Eiji Shiohama, Hiroyuki Nishino, Minoru Maehara, Yosiaki Hasitani, Yosuke Kondo
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Patent number: 8780588Abstract: Disclosed is a bidirectional DC/DC converter including: a primary side circuit that includes a first DC power source or a first load; a secondary side circuit that includes a second load or a second DC power source; and a power transfer unit that is capable of transferring power bi-directionally between the primary side circuit and the secondary side circuit. Further, the bidirectional DC/DC converter includes a control circuit that controls the primary side circuit and secondary side circuit in such a way that current flows through the power transfer unit from the first DC power source to the second load or from the second DC power source to the first load.Type: GrantFiled: April 7, 2011Date of Patent: July 15, 2014Assignee: Panasonic CorporationInventors: Kouichi Teraura, Hiroyuki Nishino, Hiroaki Koshin, Yukihiro Murata, Yasuhisa Ihira
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Patent number: 8749168Abstract: An illumination light communication device includes a light source unit including light emitting elements; a power supply unit controlling a load current flowing through the light source unit to be maintained at a constant; a switch element connected in series to the light source unit; and a control unit configured to control on/off of the switch element to modulate a light intensity of illumination light from the light source unit such that a binary communication signal is superimposed on the illumination light. The control unit has a switching circuit to open/close a path between the light source unit and the power supply unit, controls on/off of the switching circuit based on a dimming signal to perform a dimming control on the light source unit by a PWM control, and allows the communication signal to be superimposed on the illumination light in synchronization with an ON time of the switching circuit.Type: GrantFiled: July 12, 2012Date of Patent: June 10, 2014Assignee: Panasonic CorporationInventors: Masao Kamada, Eiji Shiohama, Hiroyuki Nishino, Minoru Maehara, Yosiaki Hasitani, Yosuke Kondo
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Publication number: 20130170252Abstract: An electric power supply apparatus, which enables a driving frequency of a switching circuit connected to a primary side of a transformer constant and output of a secondary side variable, comprises a transformer (5), a series circuit of two first switching elements (Q1, Q2) connected between terminals of a direct current power supply (2), an LC resonant circuit connected between both ends of one of the first switch element (Q2) and a primary winding (Np) of the transformer (5), bidirectional switch elements (Q3, Q4) connected to secondary windings (Ns1, Ns2) of the transformer (5) and having a rectification function and a phase control function, and a control circuit for inputting gate driving signals having a phase difference into the first switch elements (Q1, Q2) and the second switch elements (Q3, Q4).Type: ApplicationFiled: September 21, 2011Publication date: July 4, 2013Applicant: PANASONIC CORPORATIONInventors: Hiroyuki Nishino, Kazunori Kidera, Mariko Nishi
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Publication number: 20130140901Abstract: A DC power supply system includes a DC power supply and a secondary battery for backing up the DC power supply. When a voltage of the DC power supply is lower than a voltage of the secondary battery, the DC power system adds an extra voltage to the voltage of the DC power supply to provide an input voltage to the secondary battery higher than the voltage of the secondary battery by using an electric power of the secondary battery, and the secondary battery is charged.Type: ApplicationFiled: September 8, 2011Publication date: June 6, 2013Applicant: PANASONIC CORPORATIONInventors: Kazunori Kidera, Takuya Kagawa, Hideki Tamura, Hiroyuki Nishino, Mariko Nishi
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Publication number: 20130044519Abstract: Disclosed is a bidirectional DC/DC converter including: a primary side circuit that includes a first DC power source or a first load; a secondary side circuit that includes a second load or a second DC power source; and a power transfer unit that is capable of transferring power bi-directionally between the primary side circuit and the secondary side circuit. Further, the bidirectional DC/DC converter includes a control circuit that controls the primary side circuit and secondary side circuit in such a way that current flows through the power transfer unit from the first DC power source to the second load or from the second DC power source to the first load.Type: ApplicationFiled: April 7, 2011Publication date: February 21, 2013Applicant: PANASONIC CORPORATIONInventors: Kouichi Teraura, Hiroyuki Nishino, Hiroaki Koshin, Yukihiro Murata, Yasuhisa Ihira
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Publication number: 20130015784Abstract: An illumination light communication device includes a light source unit including light emitting elements; a power supply unit controlling a load current flowing through the light source unit to be maintained at a constant; a switch element connected in series to the light source unit; and a control unit configured to control on/off of the switch element to modulate a light intensity of illumination light from the light source unit such that a binary communication signal is superimposed on the illumination light. The control unit has a switching circuit to open/close a path between the light source unit and the power supply unit, controls on/off of the switching circuit based on a dimming signal to perform a dimming control on the light source unit by a PWM control, and allows the communication signal to be superimposed on the illumination light in synchronization with an ON time of the switching circuit.Type: ApplicationFiled: July 12, 2012Publication date: January 17, 2013Applicant: Panasonic CorporationInventors: Masao KAMADA, Eiji SHIOHAMA, Hiroyuki NISHINO, Minoru MAEHARA, Yosiaki HASITANI, Yosuke KONDO
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Publication number: 20130015785Abstract: An illumination light communication device includes a power supply unit controlling a load current in a light source unit to be maintained constant based on a dimming signal; an impedance unit series connected to the light source unit; a switch element parallel connected to the impedance unit to connect/disconnect the impedance unit with the light source unit; and a control unit controlling on/off of the switch element to modulate a light intensity of the light source unit such that a binary communication signal is superimposed on illumination light therefrom. The control unit controls the impedance of the impedance unit such that a difference between magnitudes of the load currents respectively when the pulse of the communication signal is superimposed and is not superimposed is maintained constant regardless of a dimming rate of the dimming signal in a range of a dimming rate equal to or greater than a predetermined level.Type: ApplicationFiled: July 12, 2012Publication date: January 17, 2013Applicant: PANASONIC CORPORATIONInventors: Masao KAMADA, Eiji SHIOHAMA, Hiroyuki NISHINO, Minoru MAEHARA, Yosiaki HASITANI, Yosuke KONDO
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Publication number: 20120051757Abstract: An illuminating light communication device comprises a constant current source, a smoothing capacitor connected to an output of the constant current source, a load circuit comprising a light emitting diode and connected to the output of the constant current source, a load change element added to the load circuit and thereby partially changing load characteristic of the load circuit, and a switch element configured to determine whether or not the load change element is added to the load circuit in accordance with a binary optical communication signal.Type: ApplicationFiled: August 22, 2011Publication date: March 1, 2012Inventors: Hiroyuki Nishino, Eiji Shiohama, Shigeaki Yamasaki